What is meant by the condition of being able to walk in the socks to wipe over them? Does that mean they are not torn or falling off? If so, what kind of surface is intended? And what is meant by the condition that water does not immediately penetrate them? Is it meant pouring water or wiping with wet hands? And is it permissible to wipe over two layers of thin socks if they meet the conditions?

The majority of jurists stipulate for wiping over leather socks (khuffayn) and ordinary socks (jawrabayn) that they must be something commonly walkable in. This condition implies several things: that the material they are made of is suitable for walking, that they are not so tight as to prevent walking, nor so loose as to not stay firm on the foot, and that they are strong enough not to tear quickly.

Jurists have differed in defining the precise standard for strength and thickness. Some defined it by the distance one could walk in them, others by the duration, and some by their ability to withstand walking for daily needs.

As for Shaykh al-Islam Ibn Taymiyyah, he held the view that wiping over socks is permissible if they are commonly walked in, whether they are leather-soled or not, and whether they are made of wool, cotton, or linen. He based his argument on the hadith: "Indeed, the Prophet (peace be upon him) wiped over his socks and sandals."

Some jurists stipulated that the sock must be thick enough to prevent water from penetrating it, whereas Shaykh al-Islam Ibn Taymiyyah believed this was not a condition, and that the difference between socks and sandals does not affect the Sharia.

If several thin socks are worn until they collectively achieve the thickness of a thick sock, wiping over them is permissible as long as they cover the feet.